News Detail

Casting appearance quality standard

Issuing time:2015-04-29 17:11
Serial numberDefect nameindex
Top quality goodsFirst GradeQualified products
1Bubble○＜2mmN≤2○＜2mm2＜N≤5○＜2mmN＞5
2ScratchL≤5mmN≤25mm＜L≤40mm2＜N≤540mm≤LN＞5
3Modular injuryL≤5mmN≤45mm≤L≤10mm4＜N≤710mm≤LN＞7
4Magazines, sundries0.5mm≤○≤2mmN≤40.5mm≤○≤2mm4＜N≤70.5mm≤○≤2mmN＞7
5Water wrinkleNotanyS≤200*200mmN＜2S＞200*200mmN＞7
6Uneven dispersion of color pasteNotanySlight color difference and small area color paste precipitation are allowedSevere chromatic aberration
7Plate fractureNotanyL≤200mmL＞200mm
8Bite plateN≤33＜N≤5N＞5
9Surface residual silicon glassNotanyNotanyNotany
10Traces of alkalinity, water marks, mould spots and hemp spots on silica glass
Not any		S≤50*50mm50*50mm＜S≤200*200mm
11Silicon glass stripeNotanyNotanyNotany

Supplementary notes:


1: The allowable range of surface area defects refers to each plate

2: The defects within 20 mm from the edge of the plate shall not be counted for the plate without cutting edge

3: The sum of the above defects allowed for class a sheet is not more than 3

4: Inspection method: the light is placed behind the plate, and the distance from the plate is about 60cm



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